ASROCK IMB-1225 Service-Handbuch

9 : Panel Power Select (LCD_VCC)

(PNL_PWR1)

1-2 : LCD_VCC : +3V

2-3 : LCD_VCC : +5V

4-5 : LCD_VCC : +12V

10 : Inverter Power Control Wafer (BLT_PWR1)

11 : LVDSBL1

Open : Protect LCD_VCC

Short : No Protect LCD_VCC

12 :

Backlight Power Select

(LCD_BLT_VCC) (BKT_PWR1)

1-2 : LCD_BLT_VCC : +5V

2-3 : LCD_BLT_VCC : +12V

13 : Backlight Volume Control (BLT_VOL1)

14 : Backlight Control Level

(CON_LBKLT_CTL) (BLT_PWM1)

1-2 : From eDP PWM to

CON_LBKLT_CTL

2-3 : From LVDS PWM to

CON_LBKLT_CTL

15 :

4-Pin CPU FAN Connector

(+12V) (CPU_FAN1)

COM Port PWR Setting Jumpers

1 : PWR_COM3 (For COM Port3)

23 : PWR_COM4 (For COM Port4)

1-2 : +5V

2-3 : +12V

2 :

USB2.0 Header (

USB2_8_9)

3 :

USB3.2 Gen1 Header

(

USB3_3_4)

4 : SATA3 Connectors (SATA3_1~4)

5 : 4-pin ATX Power Input/Output

Connector

6 : 24-pin ATX Power Input Connector

7 :

LVDS Panel Connector

8 : LVDSBL2

Open : Protect LCD_BLT_VCC

Short : No Protect LCD_BLT_VCC

Jumpers and Headers Setting Guide

IMB-1225

16 :

System Panel Header

17 : COM Port Headers

(COM4, 5, 6) (RS232)

18 : Clear CMOS Headers

CLRMOS1 :

1-2 : Normal

2-3 : Clear CMOS

CLRMOS2 :

Open : Normal

Short : Auto Clear CMOS (Power O󰀨)

19 :

4-Pin Chassis FAN Connector (+12V)

(CHA_FAN1)

20 : Buzzer

21 : Chassis Intrusion Headers (CI1, CI2)

CI1 :

Open : Normal

Short : Active Case Open

Cl2 :

Open : Active Case Open

Short : Normal

22 : Digital Input/Output Pin

Header (JGPIO1)

The terms HDMI® and HDMI High-Denition

Multimedia Interface, and the HDMI logo are

trademarks or registered trademarks of HDMI

Licensing LLC in the United States and other

countries.

PIN Signal Name PIN Signal Name

39 LCD_BLT_VCC 40 LCD_BLT_VCC

37 CON_LBKLT_CTL 38 LCD_BLT_VCC

35 GND 36 CON_LBKLT_EN

33 LVDS_B_CLK# 34 LVDS_B_CLK

31 LVDS_B_DATA3 32 GND

29 DPLVDD_EN 30 LVDS_B_DATA3#

27 LVDS_B_DATA2# 28 LVDS_B_DATA2

25 LVDS_B_DATA1 26 GND

23 GND 24 LVDS_B_DATA1#

21 LVDS_B_DATA0# 22 LVDS_B_DATA0

19 LVDS_A_CLK 20 GND

17 GND 18 LVDS_A_CLK#

15 LVDS_A_DATA3# 16 LVDS_A_DATA3

13 LVDS_A_DATA2 14 GND

11 GND 12 LVDS_A_DATA2#

9 LVDS_A_DATA1# 10 LVDS_A_DATA1

7 LVDS_A_DATA0 8 PD (Panel Detection)

5 LDDC_DATA 6 LVDS_A_DATA0#

3 +3.3V 4 LDDC_CLK

1 LCD_VCC 2 LCD_VCC

Revision History

Date Description

November 19, 2020 First Release

DUMMY

GND GND

-B

-A

USB_PWR USB_PWR

PIN Signal Name

1 GND

2 GND

3 CON_LBKLT_CTL

4 CON_LBKLT_EN

5 LCD_BLT_VCC

6 LCD_BLT_VCC

PIN Signal Name

1 GPIO_VOL_UP

2 GPIO_VOL_DW

3 PWRDN

4 BLT_UP

5 BLT_DW

6 GND

7 GND

1 12

1 24

40 2

39 1

GND

+12V

CPU_FAN_SPEED

FAN_SPEED_CONTROL

PIN Signal

Name PIN Signal

Name

1DDCD# 3TTXD 5GND 7RRTS# 9PWR

2RRXD 4DDTR# 6DDSR# 8CCTS#

GND

+12V

CHA_FAN_SPEED

FAN_SPEED_CONTROL

Signal

GND

+5V

Signal

GND

PIN Signal

Name PIN Signal

Name

2SIO_

GP71 4SIO_

GP72 6SIO_

GP73 8SIO_

GP74 10 GND

1SIO_

GP75 3SIO_

GP76 5SIO_

GP77 7SIO_

GP80 9JGPIO_

PWR

P/ N: 15G06M105000AK V1.0

*15G06M105000AK*

24 :

Digital Input / Output Power Select

(JGPIO_PWR1)

1-2 :

+12V

2-3 :

+5V

25 :

Digital Input / Output

Default Value Setting

(JGPIO_SET1)

1-2 : Pull-High

2-3 : Pull-Low

26 : LPC Header

27 : PWR_BAT1

Open : Normal

Short : Charge Battery

28 : SPDIF Header

29 : SIO_AT1

Open : ATX Mode

Short : AT Mode

30 : 3W Audio AMP Output Wafer

31 :

Front Panel Audio Header

32 : Audio Output

Green - Line Out

Pink - Mic In

34 : Top : RJ45 LAN Port (LAN2)

Bottom :

USB2.0

Ports (USB2_5_6)

36 : Top : RJ45 LAN Port (LAN1)

Bottom :

USB3.2 Gen1

Ports (USB3_1_2)

37 : Top : DisplayPort (DP1)

Bottom :

HDMI Port (HDMI)

38 : Top : COM Port (COM3) (RS232)

Bottom :

D-Sub Port (VGA1)

39 : Top : COM Port (COM1) (RS232/422/485)*

Bottom :

COM Port (COM2) (RS232/422/485)*

35 : M.2 Key-E Socket (M2E1)

COM1, 2 Port Pin Denition

PIN RS232 RS422 RS485

1 DCD TX- RTX-

2 RXD RX+ N/A

3 TXD TX+ RTX+

4 DTR RX- N/A

5 GND GND GND

6 DSR N/A N/A

7 RTS N/A N/A

8 CTS N/A N/A

9 +5V / +12V N/A N/A

J_SENSE

OUT2_L

MIC_RET

PRESENCE#

GN D

OUT2_R

MIC2_R

MIC2_L

OUT_RET

M.2 Socket Pin Denition

33 : M.2 Key-M Socket (M2M1)

PIN Signal

Name PIN Signal

Name

1 OUTLN 2 OUTLP 3 OUTRP 4 OUTRN

+5V

3 2 1

GN D

SMB_DATA_MAIN

LAD2

LAD1

GN D

S_PWRDWN #

SERIRQ #

GND

P CIC LK

PCIRST #

LAD3

+3 V

LAD0

+3VS B

GN D

FRAM E

SMB_CLK_MAIN

* This motherboard supports RS232/422/485 on COM1, 2 ports.

Please refer to below table for the pin denition. In addition, COM1, 2

ports (RS232/422/485) can be adjusted in BIOS setup utility >

Advanced Screen > Super IO Conguration. You may refer to our

user manual for details.

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